1. Applicable to 70mai A810 dashcam CPL polarizer 2. Say goodbye to glare and blur Working principle of polarizer The principle of CPL (circular polarizer) filter is based on the polarization characteristics of light. It consists of two lenses, one of which is fixed and the other can rotate. When natural light (including light waves vibrating in various directions) passes through the filter, a part of polarized light vibrating in a specific direction will be filtered out. 3. Eliminate reflections and reject glare No color cast and clearer Effectively eliminate light waves vibrating in various directions, and the picture is clearer! 4. Embedded installation silicone anti-slip strip design Convenient one-step installation, carefully anti-slip medical care at the buckle No matter how bumpy and shaking, it is as stable as Mount Tai! 5. Oleophobic and waterproof coating with high protection and easy to clean Just wipe it easily to keep the mirror face clean as new, and it will be clean and bright for a long time. Applicable models: for 70mai A810 dashcam Color: black Material: CPL Weight per set: 50g Packing method: boxed Contents per set: filter*1